115133913 has 8 divisors (see below), whose sum is σ = 170568800. Its totient is φ = 76755924.

The previous prime is 115133881. The next prime is 115133923. The reversal of 115133913 is 319331511.

It is not a de Polignac number, because 115133913 - 2⁵ = 115133881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4264219 = 115133913 / (1 + 1 + 5 + 1 + 3 + 3 + 9 + 1 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115133923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2132083 + ... + 2132136.

It is an arithmetic number, because the mean of its divisors is an integer number (21321100).

Almost surely, 2^115133913 is an apocalyptic number.

It is an amenable number.

115133913 is a deficient number, since it is larger than the sum of its proper divisors (55434887).

115133913 is an equidigital number, since it uses as much as digits as its factorization.

115133913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264228 (or 4264222 counting only the distinct ones).

The product of its digits is 1215, while the sum is 27.

The square root of 115133913 is about 10730.0472039968. The cubic root of 115133913 is about 486.4830968285.

The spelling of 115133913 in words is "one hundred fifteen million, one hundred thirty-three thousand, nine hundred thirteen".